Dennis M Chapel Hill , NC February 16, 2015 Appliance: Model KENMORE 721.69123010 Fan and turntable would go on when door was open otherwise worked fine Replaced lower door latch switch, which was defective. Had ordered all three switches "just in case" but only the bottom one needed replacement. Thanks to the internet posts of others on this site and others, we knew what the likely culprit was and which parts to order. I love the internet and Google! Cost just $15 and a little time, and saved probably $70 - 100 over calling in a professional repair person. (Or more if we'd decided to just replace the micro.) And Appliance Parts Pros was great to deal with - shipped parts the same day, arrived two days later - perfect! Thank you! PS Repair took longer than we expected because we had to figure out how to get the old switch out - turned out that it swiveled down, after one pressed in the small piece on which it rested. Husband and wife team figured it out! 210 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes